21915853

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 23772672

約数和(自身を除く): 1856819

約数列:

[1, 31, 41, 43, 401, 1271, 1333, 1763, 12431, 16441, 17243, 54653, 509671, 534533, 706963, 21915853]

約数ペア:

[(1, 21915853), (31, 706963), (41, 534533), (43, 509671), (401, 54653), (1271, 17243), (1333, 16441), (1763, 12431)]